update

Hunter0x7c7

2022-08-11 b8230139fb40edea387617b6accd8371e37eda58

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package quic 
 
import ( 
    "crypto/aes" 
    "crypto/cipher" 
    "crypto/sha256" 
 
    "golang.org/x/crypto/chacha20poly1305" 
 
    "github.com/v2fly/v2ray-core/v5/common" 
    "github.com/v2fly/v2ray-core/v5/common/protocol" 
    "github.com/v2fly/v2ray-core/v5/common/serial" 
    "github.com/v2fly/v2ray-core/v5/transport/internet" 
) 
 
func getAuth(config *Config) (cipher.AEAD, error) { 
    security := config.Security.GetSecurityType() 
    if security == protocol.SecurityType_NONE { 
        return nil, nil 
    } 
 
    salted := []byte(config.Key + "v2ray-quic-salt") 
    key := sha256.Sum256(salted) 
 
    if security == protocol.SecurityType_AES128_GCM { 
        block, err := aes.NewCipher(key[:16]) 
        common.Must(err) 
        return cipher.NewGCM(block) 
    } 
 
    if security == protocol.SecurityType_CHACHA20_POLY1305 { 
        return chacha20poly1305.New(key[:]) 
    } 
 
    return nil, newError("unsupported security type") 
} 
 
func getHeader(config *Config) (internet.PacketHeader, error) { 
    if config.Header == nil { 
        return nil, nil 
    } 
 
    msg, err := serial.GetInstanceOf(config.Header) 
    if err != nil { 
        return nil, err 
    } 
 
    return internet.CreatePacketHeader(msg) 
}